Privacy Policy

Last updated: November 10, 2026

This Privacy Policy describes how Eidica ("the App," "we," or "the Developer") handles user data and privacy.

1. Overview

Eidica stores your notes, media, and optional note locations on your device. You can back them up to your own iCloud account. This policy also explains how Eidica handles trial verification, purchases, and crash diagnostics.

2. Data Storage

• Local Storage: All notes, media, and (if permitted) location data are stored locally on the user's iPhone or iPad.
• iCloud Backup (optional): If the user enables iCloud backup, data are encrypted and saved exclusively to the user's own iCloud account through Apple's secure infrastructure.

3. Personal Information

• Eidica does not require a separate app account, name, email address, or contacts. If you email support, we receive the address and information you send so we can respond.
• Location information is stored only if the user explicitly allows it, and only with the related note on the user's own device or iCloud account.
• The trial and purchase services do not receive your notes, media, or note location data.

4. Purchase Data

Apple processes payments and manages subscriptions through the App Store. RevenueCat uses an app user identifier and App Store transaction information to verify purchases and restore access. The developer does not receive your payment card information.

5. Free Trial

The 7-day free trial starts on the first eligible app launch. It does not start a subscription or charge you when it ends. You can choose a paid plan from Eidica's purchase screen, available in Settings.

In versions that support cross-device trial verification, Eidica sends an Apple-signed app transaction and a randomly generated device identifier to its trial service hosted by Cloudflare. When available, it also sends Apple's device verification identifier to check that the transaction belongs to the device. If you started a trial in an earlier version, Eidica can send the locally saved start date to carry it over.

The trial database retains hashed account and device identifiers and the trial start date. These records preserve the original end date when you reinstall or change devices and enforce trial eligibility. The database does not retain the signed Apple transaction or Apple's device verification identifier.

6. Security

• All local data are securely stored and encrypted where applicable.
• Eidica uses Firebase Crashlytics in release versions to collect crash reports and related diagnostics for troubleshooting.
• Trial and purchase verification and iCloud synchronization use an internet connection.

7. User Rights

Users may:

• Manage or delete iCloud backups in their Apple Account settings.
• Remove the App to delete its local notes and media. iCloud backups, App Store purchase records, and trial records may remain.
• Contact us at the address below with questions or requests about trial data, including deletion requests.

8. Policy Updates

We may update this Privacy Policy periodically. Any significant changes will be communicated within the App.